Sax Economy Waterpaper Pack is ideal for all wet techniques with watercolor gouache and acrylic. Pack contains natural white paper in various sizes that are perfect for beginners and experienced artists experimenting with new techniques. Paper measuring 18 x 24 in. is resistant to repeated washings. Student-grade white waterpaper provides uniform whiteness and good working textures. Paper with 140 lbs. basis weight is 100 per pack.